A look at the long history of vaccines, yesterday, today, and still to come. In Herding Immunity, Stacy Mintzer Herlihy explores the compelling history of vaccines and the equally long history of vaccination opposition. By connecting the contemporary anti-vax movement with its historical roots, Herlihy integrates modern conversations and reveals the profound impact vaccines have had on our society, highlighting the urgent need for societal change to ensure equitable vaccination for all.